Generating Sentences Using a Dynamic Canvas

We introduce the Attentive Unsupervised Text (W)riter (AUTR), which is a word level generative model for natural language. It uses a recurrent neural network with a dynamic attention and canvas memory mechanism to iteratively construct sentences. By viewing the state of the memory at intermediate stages and where the model is placing its attention, we gain insight into how it constructs sentences. We demonstrate that AUTR learns a meaningful latent representation for each sentence, and achieves competitive log-likelihood lower bounds whilst being computationally efficient. It is effective at generating and reconstructing sentences, as well as imputing missing words.Comment: AAAI 201

ON THE BLOW-UP SOLUTIONS FOR THE NONLINEAR RADIAL SCHRÖDINGER EQUATIONS WITH SPATIAL VARIABLE COEFFICIENTS

We study a generalized nonlinear Schrödinger equations with spatial variable coefficients, which models the remarkable inhomogeneous Schrö dinger maps (ISM). A new weighted Sobolev space W^(ℝ⁺) is introduced and the existence of blow-up solutions of this equations, including the integrable radial ISM, with the initial data in W^(ℝ⁺) is proved

What Motivates Chinese Firms to Invest in Asia? Analysis Based on Dunning’s OLI Framework

This study aims to show the pattern of and magnitude of China’s outward foreign direct investment (OFDI) in Asia and respond to an importan question: what motivaties the remarkable surge in Chinese FDI influx to Asia in recent time? This study will enable policy makers to frame and execute policies to attract further Chinese FDI in future. Our results are based on the panel data of 37 Asian economies over the period 2003 to 2012. Random Effects (RE) method with cluster command is adopted for estimation of models after conducting the Breusch–Pagan LM-test. Our findings revealed that market seeking is the prime motives for Chinese FDI in Asia as GDP and openness to the trade have a positive and significant relationship with Chinese FDI. We did not capture consistent results for resource seeking FDI. Chinese FDI is deterred by inflation, providing an evidence for efficiency seeking FDI. Among the control variables, infrastructural development and bilateral trade are highly influenced by Chinese FDI, while political stability being a key institutional variable is significant but negatively associated with FDI. Policies and Economic strategies should aim at liberalizing trade structure, reducing macroeconomic instability and the provision of better infrastructural facilities to attract further Chinese FDI in Asia. Keywords: Chinese FDI, Market seeking FDI, Random effect, Asi

SECONDARY CRISIS COMMUNICATION ON SOCIAL MEDIA: THE ROLE OF CORPORATE RESPONSE AND SOCIAL INFLUENCE IN PRODUCT-HARM CRISIS

Because of a large number of customers using social media, firms have embraced social media as a useful communication tool during product-harm crises. However, current knowledge on the relationships between corporate crisis response, customer secondary crisis communication, and customer purchase intention remains limited. Based on an economic view, this study proposes a model to examine how corporate crisis response affects customer secondary crisis communication and finally influence purchase intention in social media context. In addition to the direct effects, this study investigates the moderating effect of social influence in the above relationships based on social influence theory. The empirical results show that corporate crisis response could decrease customer secondary crisis communication, thus lessening the negative impact on customer purchase intention in the social media context. The findings further confirm the moderating role of customers’ perceived social influence in the above relationships. We conclude with implications and suggestions for future research

Natural resource or market seeking motive of China’s FDI in asia? New evidence at income and sub-regional level

Asia is a heterogeneous region including countries with distinct features in quite a few facets. This study is designed to unravel the motivations of Chinese FDI in 30 Asian countries (For list of countries see Appendix 1.) during 2003–2016. For estimation, we utilised the Random effect (RE), Fixed effect (FE) and System-GMM (SGMM) methodologies. We transpired that both market and natural resource (mineral richness) seeking motives of Chinese FDI in the whole sample analysis. With respect to income group, we confirmed the market seeking FDI in both high and middle- income countries whereas, mineral richness is priority for Chinese FDI in middle-income group. Thus, Chinese firms targeted middle income developing economies to acquire non-fuel natural resources. Analogously, on the regional basis, the results show that in all regression models, GDP is positive and significant predictor, characterising market seeking FDI by Chinese firms in West, East and South East Asia. In resource seeking motive, among the two types of natural resources, mineral richness affect Chinese FDI positively in East & South East Asia. In a nutshell, seeking market is the common motive for Chinese FDI in the entire sample, whereas the resource seeking motive varies across the income groups and regions

Molecular basis for heat desensitization of TRPV1 ion channels.

The transient receptor potential vanilloid 1 (TRPV1) ion channel is a prototypical molecular sensor for noxious heat in mammals. Its role in sustained heat response remains poorly understood, because rapid heat-induced desensitization (Dh) follows tightly heat-induced activation (Ah). To understand the physiological role and structural basis of Dh, we carried out a comparative study of TRPV1 channels in mouse (mV1) and those in platypus (pV1), which naturally lacks Dh. Here we show that a temperature-sensitive interaction between the N- and C-terminal domains of mV1 but not pV1 drives a conformational rearrangement in the pore leading to Dh. We further show that knock-in mice expressing pV1 sensed heat normally but suffered scald damages in a hot environment. Our findings suggest that Dh evolved late during evolution as a protective mechanism and a delicate balance between Ah and Dh is crucial for mammals to sense and respond to noxious heat

Nanobubbles for enhanced ultrasound imaging of tumors

The fabrication and initial applications of nanobubbles (NBs) have shown promising results in recent years. A small particle size is a basic requirement for ultrasound contrast-enhanced agents that penetrate tumor blood vessel pores to allow for targeted imaging and therapy. However, the nanoscale size of the particles used has the disadvantage of weakening the imaging ability of clinical diagnostic ultrasound. In this work, we fabricated a lipid NBs contrast-enhanced ultrasound agent and evaluated its passive targeting ability in vivo. The results showed that the NBs were small (436.8 ± 5.7 nm), and in vitro ultrasound imaging suggested that the ultrasonic imaging ability is comparable to that of microbubbles (MBs). In vivo experiments confirmed the ability of NBs to passively target tumor tissues. The NBs remained in the tumor area for a longer period because they exhibited enhanced permeability and retention. Direct evidence was obtained by direct observation of red fluorescence-dyed NBs in tumor tissue using confocal laser scanning microscopy. We have demonstrated the ability to fabricate NBs that can be used for the in vivo contrast-enhanced imaging of tumor tissue and that have potential for drug/gene delivery